Is selling on Amazon UK in 2025 worth it?

I know this question has been asked multiple times in the past but I’ve just registered for a seller account on Amazon – got approved and then got a few negative comments come through about how I might actually lose money.

I just want to make like £1000 profit a month – nothing crazy. Is it doable? What are Amazon storage costs like? I can’t afford to lose a lot of money so some cutthroat real advice would be great. I haven’t set up shop yet or even sourced inventory as yet. Literally just got my seller account approved.